Investment Casting Machinery Parts

Investment Casting Machinery Parts

Investment casting machinery parts are crucial components in many industries. Investment casting is one of the most diverse casting methods used in manufacturing. It is also known as a lost wax casting. Investment casting involves making a pattern from a wax-like material and forming a ceramic around the wax pattern. Investment casting can produce complex parts with high accuracy.

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Our products are manufactured or executed to a very high standard, using the finest materials and manufacturing processes.

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What is Investment Casting Machinery Parts

 

 

Investment casting machinery parts are crucial components in many industries. Investment casting is one of the most diverse casting methods used in manufacturing. It is also known as a lost wax casting. Investment casting involves making a pattern from a wax-like material and forming a ceramic around the wax pattern. Investment casting can produce complex parts with high accuracy.

 

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Lost Wax Casting Metal Parts

Investment casting(Lost Wax Casting) is a specialty of our company, and with nearly 20 years of experience in the industry, we have amassed a wealth of knowledge and expertise in this field. Our team of professionals is dedicated to providing top-quality services to our clients, and we strive to optimize the parts' solutions to save you money.

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Mechanical Parts Precision Casting

Our products are renowned for their quality, accuracy, and durability. We have a highly skilled team of experts who use the latest technology and equipment to ensure that our products meet the highest standards. Moreover, we place great emphasis on our quality control processes to ensure that our clients receive the best possible products.

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Investment Casting Mechanical Parts

It is a method of creating parts by pouring molten metal into a mold or pattern, which is then removed after the metal solidifies. This technique is ideal for creating intricate and complex parts that would be difficult or impossible to produce with other manufacturing methods, such as forging or stamping.

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Investment Casting Metal Parts

Investment casting, also known as lost-wax casting, is a manufacturing process that has been used for centuries to create complex, high-quality metal components. The process involves creating a wax pattern of the desired part, which is then coated in a ceramic material to form a mold.

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Alloy Steel Investment Casting

We ensure the highest level of quality in our products by implementing a comprehensive quality control system. Our team of experts performs various inspections and tests using state-of-the-art equipment to ensure accurate dimension, chemical composition analysis, mechanical property, non-destructive tests, and metallographic inspections.

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Investment Casting Products

We are equipped with advanced machining and test equipment, including many CNC machining centers, CNC turning centers, CNC milling machines, and CNC lathes. In addition, we offer heat-treatment, electricity polishing, mirror polishing, and CNC machining services upon request.

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Precision Steel Casting Products

The investment casting process is executed in several steps. Firstly, a mold is created by pouring plaster into a negative of the desired object. After the mold has dried, a wax pattern is produced by injecting molten wax into the mold. This wax pattern is an exact replica of the desired product, and it is then coated with a ceramic shell to create the casting mold.

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Stainless Steel Precision Casting Products

Stainless Steel Precision Investment Casting is a new and advanced way of creating high-quality parts with high dimensional accuracy and surface finish. With this process, you can create perfect parts that meet all your requirements. The process of Stainless Steel Precision Casting involves melting metal and pouring it into a mold. The mold is then cooled and the metal is solidified, leaving the desired shape and size of the part.

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Investment Casting Steel Parts

Investment casting, also known as the lost wax process, has been a popular manufacturing technique for centuries. This process involves creating a wax pattern of the desired part, coating it with a ceramic material to create a mold, and finally pouring molten metal into the mold to create the final product. Investment casting offers a range of benefits, including high dimensional accuracy, excellent surface finish, and cost savings.

 

Advantages of Investment Casting Machinery Parts

 

Superior Surface Finish
The investment casting process provides far superior surface finish as compared to forgings and sand castings. This can be important at times to avoid machining or other finishing operations.
Variety of Materials
Investment casting machinery partss can be cast in a range of alloys including stainless steel, brass, bronze, cobalt, nickel and custom alloys.
Closer to Finished Part Designs
Investment castings provide near net shapes for manufactured parts, thus eliminating or reducing machining costs. An added benefit of near net shape is the savings on material, especially with more expensive alloys like nickel and cobalt alloys.
Intricate Design
Holes, undercuts, slots and other difficult detail that cannot be had with other processes can often be provided through investment casting – thus reducing the amount of machining. Logos, numbers or names can be incorporated on parts as markings.
Difficult Thin Wall Castings
The investment casting process is capable of more reliable castings with much thinner walls than sand castings. Advantages include substantially less scrap rates and castings that weigh less due to the thinner wall capability.
Tight Tolerances
Due to the nature of the process, investment casting machinery partss can be held to much tighter tolerances than sand castings or forgings. Tolerances down to + – 0.1mm can be achieved – resulting in a highly accurate cast part.
Competitive Tooling Costs
Initial charges for the investment casting tooling are often less expensive than those for die castings and forgings.
Minimal Casting Defects
Being a cleaner process than sand moulds, investment casting machinery partss in general, provide a much higher percentage of defect free-castings.

Application of Investment Casting Machinery Parts

 

 

Medical Industry
Investment casting machinery parts has the ability to produce small parts with excellent surface finish. Therefore, this approach has advantages in the medical industry. Examples include prosthetics, implants and some surgical devices.
Energy Industry
The energy industry has a very specific use for this manufacturing technique. Wind turbine blades are huge, weighing several tons, and require exceptional strength and finish.
Agriculture
Agriculture is known to be the oldest industry in the world. In agriculture, investment casting machinery parts is often used in the production of agricultural equipment. Including tractors, combines, balers, seeders, spreaders, plows, tillage equipment and other agricultural machinery with iron parts.
Aerospace
Investment casting machinery parts can produce products with complex geometries and high strength requirements. The technology enables the manufacture of key components in aircraft engines and airframes.
Marine Industry
investment casting machinery parts of metal parts is common in the marine industry. Strong, corrosion-resistant metal panels for ships and submarines are made from special alloys.
The Food and Dairy Industry
A wide variety of devices rely on investment casting machinery parts to manufacture their components. Because of the need for accuracy and durability, components in the food industry are made of stainless steel or special alloys.
Automobile Industry
In the automotive industry, investment casting machinery parts produces high-performance components. Examples include drivetrain components, rocker arms, and powertrain components.

 

How Are Investment Casting Machinery Partss Made
Pump Parts Stainless Steel Casting
Pump Parts Stainless Steel Casting
Stainless Steel Precision Casting Products
Valve Accessories Precision Casting Parts

Engineering Review
The first step in investment casting machinery parts is a full Design for Manufacturing (DFM) review with the customer. Reviews include evaluation of print dimensions, wax pattern construction considerations such as gate placement, material requirements, expected fit tolerances, part form and function, and final inspection criteria.
Mold Design and Construction
Our wax injection moulds are made in our factory's in-house mould shop. In this step, we will discuss these design considerations with the mold manufacturing engineer and create the mold design. We design and manufacture molds to replicate millions of wax parts over the life of the mold.
Wax Model
The wax injection mold is quantized and produced, and then the wax model is sent to the wax injection chamber for wax injection assembly. Wax model assembly is where 1 to 100 patterns are injected and placed or glued onto a pre-made wax runner system, called a "tree cluster" in our process.
Make Shell
We dipped the wax model in ceramic mud, removed it, covered it completely with sand to form the first shell, and dried it. This process needs to be repeated about eight times, each time with a drying time.
De-waxing
The shell, consisting of a wax pattern with its ceramic and sand coating, is placed in an autoclave, which rapidly melts the wax under extreme pressure and steam heating, creating an empty ceramic mould. For this process, investment casting machinery parts is also known as "lost wax" casting.
Cast Metal
The mold is then placed in a high temperature oven at approximately 1000°C (1832°F) to cure the (cristobalite) ceramic mold. The cured ceramic mould is removed from the hot oven, and the molten metal is immediately poured into the mould, so as to completely fill the cavity of the mould with the metal.
Remove the Shell
After the metal is cool enough to touch, the ceramic shell can be broken away, leaving a tree-like structure behind..The casting from the current metal tree is then removed. Breaking ceramics typically uses water sprays, vibrations, and other methods.
Cut Off
Severing involves removing individual parts from a spring or runner..nce this part is disconnected from the runner, the remainder of the gate is ground away..Typically, the gating of a part is removed by grinding or post-machining casting operations.
Finish the Parts
Parts were carefully cut from the metal tree structure..If desired, we can perform further finishing to achieve the required tolerances and surface finish..Including machining, electroplating, painting, heat treatment, etc.
Inspect the Parts
This process is to ensure that the investment cast meets all the required specifications..Dimensional inspection and non-destructive testing (NDT) are usually performed.

 

Surface Treatment of Investment Casting Machinery Parts

 

 

Investment castings have a slightly rougher surface after the dewaxing stage. Typically, the surface finish is 125 Ra, which varies slightly depending on the material and quality of the die. Depending on the design requirements and specifications of the invested cast parts, a variety of surface finishing treatments can be used to achieve the desired requirements. Some are based on material removal, while others are based on coating surfaces to neutralize rough surfaces and bury them under an outer coating. Typically, the choice of surface finish for an investment cast part depends on factors such as dimensional tolerances, preferred appearance, and mechanical properties. Surface treatment procedures that can be selected include: anodizing, polishing, painting, powder coating, passivation, electroless nickel plating, etc.

 

Metals for Investment Casting Machinery Parts

 

 

Aluminum Alloy
Aluminum alloy investment casting machinery partss are corrosion resistant, weldable, and some have extraordinary strength. Common investment cast aluminum components include aircraft and engine parts.
Stainless Steel
There are many grades of stainless steel, with different alloy content and different characteristics. Common stainless steel is highly corrosion resistant. Stain-free steel investment casting machinery partss are ideal for parts exposed to high temperatures or liquid environments.
Carbon Steel
Carbon steel is one of the most commonly used metals for investment casting machinery parts. The properties of carbon steel depend on its carbon content. Of course, carbon steel can also be heat-treated to increase hardness and strength.
Nickel Alloy
Nickel alloys have a variety of properties, including: high strength, resistance to heat, corrosion, and wear. The primary use of nickel alloy investment casting machinery partss is in conditions with high temperatures and corrosive elements.
Copper Alloy
Copper alloys are easy to cast, so they are used in investment casting machinery parts. The copper alloy is corrosion resistant, thermally conductive, and tough. Copper alloy types used for investment casting machinery parts include the series C-84500, C-85800, C-86000, C-87000, C-90000, and C-95000.
Cobalt Alloy
Cobalt alloys have high strength and heat and wear resistance. In addition, various cobalt alloys contain different amounts of chromium, nickel, tungsten, and molybdenum, changing their properties and resistance types.
Magnesium Alloy
Casting magnesium using investment casting machinery parts is difficult due to the reaction of magnesium with the silica mold casing..However, with the development of technology, inhibitors are currently being introduced to make magnesium alloys suitable for investment casting machinery parts..Magnesium alloys are lightweight and have an excellent strength-to-weight ratio.

 

What Is The Difference Between Investment Casting And Sand Casting

 

Sand casting and investment casting are two processes for producing metal objects that involve pouring molten metal into molds. Despite the fact that these technologies are thousands of years old, they have been developed through time to reduce the quantity of metal utilized and the amount of machining and polishing necessary. However, there are substantial distinctions between these two metal component manufacturing procedures. Their process may seem similar, but the key difference is in the mold. One uses sand and the other uses wax. Investment casting also has a high pre-production cost to develop a wax design and ceramic shell, and then make smooth finished items. While sand casting is less expensive than investment casting, it requires an after-process to cope with the rough surface of the end product. Let's understand both methods to have a better view of how these differences affect each investment casting coating process.

 

Comparison Between Stainless Steel and Aluminum in Investment Casting Machinery Parts

When selecting a material for investment casting machinery parts, it is essential to make a comparison between Stainless Steel and Aluminum. These metals are popular choices in various industries due to their distinct properties, but they serve different needs and applications.
Weight and Strength
Aluminum is a lightweight material, which makes it an excellent choice for applications where weight savings are critical. Stainless steel, while heavier, boasts a higher strength-to-weight ratio, offering superior durability and resistance to wear and tear.
Cost Comparison
Generally, aluminum is less expensive than stainless steel, partly due to the lower cost of its raw materials. However, the total cost must consider the entire lifecycle of the product, and stainless steel often excels in terms of longevity and maintenance requirements.

Corrosion Resistance

While both materials are known for their resistance to corrosion, stainless steel generally has a higher resistance to a wider range of environments, especially at elevated temperatures.

Application Suitability

Aluminum is ideal for aerospace and automotive applications due to its light weight and good thermal conductivity. Stainless steel is favored in medical, marine, and industrial settings due to its strength, durability, and exceptional resistance to corrosion.

Recycling and Environmental Impacts

Both aluminum and stainless steel are highly recyclable, reducing their environmental impact. Aluminum, however, can be recycled with less energy consumption compared to stainless steel.

 

Advances in Investment Casting Machinery Parts Process
 

The term investment casting machinery parts derives from the characteristic use of mobile ceramic slurry, or 'investments', to form a mould with an extremely smooth surface. These are replicated from precise patterns and transmitted in turn to the casting. investment casting machinery parts allows dimensionally accurate components to be produced and is a cheaper alternative than forging or machining, since waste material is kept to a minimum. Production of the investment casting machinery parts ceramic shell mould is a crucial part of the whole process. There are some basic steps in the production of an investment cast component using a ceramic shell mould. First, multicomponent slurries are prepared composed of a fine mesh refractory filler system and a colloidal binder system. A pattern wax is then dipped into the slurry, sprinkled with coarse refractory stucco and dried. The purpose of the stucco is to minimise drying stresses in the coatings by presenting a number of stress concentration centres which distribute and hence reduce the magnitude of the local drying stress. The second main purpose of the stucco is to present a rough surface, thus facilitating a mechanical bond between the primary coating and the back-up or secondary investment.

 

When the primary coat has set (air-dried until the binder gels), the assembly is systematically dipped into a secondary slurry and stuccoed until the required thickness of shell is built up. The particle size of the stucco is increased as more coats are added to maintain maximum mould permeability and to provide bulk to the mould. Each coating is thoroughly hardened between dippings. Thus, an investment casting machinery parts mould consists of individual layers of fine refractory material and granular refractory material held together by a binder that has been set to a rigid gel. Flexibility exists in changing the composition of each layer. Different methods can be used to remove the wax pattern, normally steam autoclave, leaving a hollow shell. Shells are fired and filled with molten metal that solidifies inside the shell. After casting, the ceramic shell is removed through mechanical or chemical methods to obtain the parts.

 

The investment casting machinery parts process has increasingly been used to produce components for the aerospace industry and it has been particularly successful for the production of single crystal turbine blades.

 

How Does Investment Casting Differ From Other Types of Casting

 

All casting methods use a heat-resistant cavity that is the shape of the desired part as a volume to be filled with liquid metal, which is removed once solidified. The means by which the cavity is formed is the primary differentiator of casting methodologies. Die casting uses a two-part (or more) hardened-steel cavity tool that is expensively and precisely machined from billet material. Sand casting forms a cavity by packing sand with a binding agent around a reusable pattern or master of the part. Investment casting forms the cavity by drying and then kiln baking a skin of refractory material over a pattern or master that is sacrificial. Precision and extent of detail differ greatly between casting methods. Die casting is high precision, although gravity (poured) die casting is less precise than the various forms of pressure die casting. Pressure die casting facilitates compensation for shrinkage, which retains/reflects the shape and dimensions of the cavity more faithfully in the cast part. Pressure die-cast parts can maintain very high levels of detail, so long as that detail can be extracted from the tool features. Sand casting is of moderate precision because the process does not lend itself to forming very accurate and repeatable cavities. It can maintain only relatively thick sections and coarse details. Investment casting is renowned for its combination of precision and fine detail while avoiding the major up-front costs of die casting.

 

How Does Investment Casting Machinery Parts Differ from Other Types of Casting

 

 

All casting methods use a heat-resistant cavity that is the shape of the desired part as a volume to be filled with liquid metal, which is removed once solidified. The means by which the cavity is formed is the primary differentiator of casting methodologies. Die casting uses a two-part (or more) hardened-steel cavity tool that is expensively and precisely machined from billet material. Sand casting forms a cavity by packing sand with a binding agent around a reusable pattern or master of the part. investment casting machinery parts forms the cavity by drying and then kiln baking a skin of refractory material over a pattern or master that is sacrificial. Precision and extent of detail differ greatly between casting methods. Die casting is high precision, although gravity (poured) die casting is less precise than the various forms of pressure die casting. Pressure die casting facilitates compensation for shrinkage, which retains/reflects the shape and dimensions of the cavity more faithfully in the cast part. Pressure die-cast parts can maintain very high levels of detail, so long as that detail can be extracted from the tool features. Sand casting is of moderate precision because the process does not lend itself to forming very accurate and repeatable cavities. It can maintain only relatively thick sections and coarse details. investment casting machinery parts is renowned for its combination of precision and fine detail while avoiding the major up-front costs of die casting.

 

Our Factory

 

Jining Wabon Precision Metal Co., Ltd is a company that has been in existence since 2002. Over the years, the company has grown and expanded its operations to become one of the leading manufacturers of precision castings in China. Our team is made up of 260 skilled and dedicated staff who work round the clock to ensure that all our clients' needs are met satisfactorily.Our production capability is impressive, with a capacity of over 1000 tons of precision castings annually. We specialize in producing precision castings using the silica sol shell mould technique.

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Ultimate FAQ Guide to Investment Casting Machinery Parts
 

Q: What are the components of investment casting?

A: The investment casting process. The investment casting process consists of several steps: metal die construction, wax pattern production, ceramic mold creation, pouring, solidification, shakeout, and cleanup.

Q: What is the difference between casting and investment casting?

A: Die casting uses reusable molds while investment casting uses disposable molds for each new cast. Die cast parts may require some post-processing in order to achieve desired finishes and dimensions, while investment casting generally requires little to no additional processing.

Q: Is investment casting expensive?

A: The technique of investment casting is very costly since it requires several complicated processes. It can be more expensive than die casting or sand casting, but the cost per unit drops with high quantities. The high cost is due to the need for specialized equipment and the high cost of refractory material and labor.

Q: What is the casting machining process?

A: The process to cut or remove material from a casting part in order to make the dimensions of the part more accurate is called the machined casting process. Machining after casting also helps to remove an unnecessary portion from a casting part.

Q: How long is the investment casting process?

A: At its core, the investment casting process is simple: create a model, form a mold, pour the metal. At most traditional precision metal foundries, you then wait anywhere from 6 to 8 weeks or more to get your part.

Q: What kind of wax is used in investment casting?

A: Paraffin wax is used to affect the rheological properties, the injection temperature and fluidity of the investment casting wax material. Microcrystalline wax is also a hydrocarbon based petrochemical produced as a by-product of the distillation of crude oil.

Q: What is the difference between centrifugal casting and investment casting?

A: Investment casting uses ceramic dies or molds that are destroyed after the casting process, while centrifugal casting uses permanent and reusable dies. Aside from the differences in dies, there is a radical difference in the process used to achieve well-formed, high-quality parts.

Q: Why is investment casting expensive?

A: Investment casting, also known as lost-wax casting, allows for the creation of intricate and detailed metal parts. Factors that affect investment casting costs are hard tooling, casting size, casting shape, alloy material, quality requirements, dimensional requirements, and quantity.

Q: Why is investment casting better than other casting methods?

A: Due to the nature of the process, investment castings can be held to much tighter tolerances than sand castings or forgings. This can be important and can avoid machining or other finishing operations. Investment casting offers near net-shape, thus reducing costly machining time.

Q: How thick is investment casting?

A: The standard minimum wall thickness for investment casting lies between . 040" and . 080". Wall thickness as low as 0.020" has been achieved within a small area.

Q: What is the best casting method?

A: Investment casting produces a finished metal part by creating a ceramic shell around a detailed consumable pattern, usually of wax or acrylic, which is ultimately melted or burned away. This method is selected because it produces an excellent "as-cast" surface finish.

Q: What is the difference between machining and casting?

A: Die casting is best for durable mass production, while CNC machining is best for small runs of particularly complex or oddly shaped parts. Die casting is much faster than CNC machining and easily repeatable.

Q: What is vacuum investment casting?

A: Vacuum investment casting yields extremely high quality metal parts with fine detail and excellent surface finish. It's also more complex than conventional investment casting and requires sophisticated melting and mold-filling equipment.

Q: Is investment casting accurate?

A: The investment casting process is very accurate in creating precise reproductions of the pattern when the flask has been prepared with skill and care. Pattern accuracy is highly dependent on the manufacturing process used to make it. A range of techniques can be used to improve the precision of the wax pattern.

Q: Is investment casting better than sand casting?

A: Both of them have their own unique advantages and disadvantages, though the main reasons our clients choose investment casting are its superiority in handling complex high tolerance designs, surface finishes and it's ability to only be machined once, eliminating the second machining costs of other options.

Q: What is the maximum weight for investment casting?

A: The weight limit of an investment casting depends on the mold handling equipment at the casting plant. The facilities cast parts up to 20 lbs. (9.07 kg). However, many domestic facilities are increasing their capability to pour larger parts, and components in the 20-120-lb.

Q: What type of wax is used for investment casting?

A: Runner wax blends are used by investment casting companies when desiring exceptional mechanical strength and lower viscosity. This type of wax has a lower melting point than pattern waxes. So it will drain completely out of the ceramic mold during the dewaxing process without the need to use higher temperatures.

Q: Is casting more expensive than machining?

A: CNC machining tends to be more expensive than die casting, but this depends on the type of parts and level of production. Often, CNC machining is used to create the die, and/or to add more intricate features after a part has been die cast.

Q: What is the manufacturing process of investment casting?

A: The term "invested" historically carries the meaning of "clothed" or "surrounded." Investment casting employs a shell made of ceramic, plaster, or plastic that is formed around a wax pattern. The wax pattern is melted and removed in a furnace and metal is poured into the shell to create the casting.

Q: What is the minimum wall thickness for steel casting?

A: A minimum thickness of 0.25 in (6 mm) is suggested for design use when conventional steel casting techniques are employed. Wall thickness of 0.060 in (1.5 mm) are common for investment castings and sections tapering down to 0.030 in (0.76 mm) can readily be achieved.

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